LASER COMPUTER, INC. LASER 8088 MAIN BOARD (VER. 1) Processor 8088 Processor Speed 10MHz Chipset Unidentified Maximum Onboard Memory 1664KB DRAM BIOS Unidentified Dimensions 270 x 218mm I/O Options None NPU Options 8087 [Image] CONNECTIONS Purpose Location Purpose Location Speaker J11 Power LED & keylock J12 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not alter SW1/1 Off » NPU not installed SW1/2 Off NPU installed SW1/2 On » Factory configured - do not alter SW2/7 N/A » Factory configured - do not alter SW2/8 N/A DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 256KB (9) 41256 None None None 512KB (9) 41256 (9) 41256 None None 576KB (9) 41256 (9) 41256 (9) 4164 None 640KB (9) 41256 (9) 41256 (9) 4164 (9) 4164 896KB (9) 41256 (9) 41256 (9) 4164 (9) 4164 1152KB (9) 41256 (9) 41256 (9) 4164 (9) 4164 1408KB (9) 41256 (9) 41256 (9) 4164 (9) 4164 1664KB (9) 41256 (9) 41256 (9) 4164 (9) 4164 DRAM CONFIGURATION Size Bank 4 Bank 5 Bank 6 Bank 7 256KB None None None None 512KB None None None None 576KB None None None None 640KB None None None None 896KB (9) 4164 None None None 1152KB (9) 4164 (9) 4164 None None 1408KB (9) 4164 (9) 4164 (9) 4164 None 1664KB (9) 4164 (9) 4164 (9) 4164 (9) 4164 DRAM CONFIGURATION Size SW1/3 SW1/4 256KB On On 512KB Off On 576KB On Off 640KB Off Off 896KB Off Off 1152KB Off Off 1408KB Off Off 1664KB Off Off EXPANDED MEMORY BANK 4 AND 5 ADDRESS Setting SW2/1 SW2/2 SW2/3 208h Off On On 218h On Off On 258h Off Off On 268h On On Off 2A8h Off On Off 2B8h On Off Off 2E8h Off Off Off Disabled On On On EXPANDED MEMORY BANK 6 AND 7 ADDRESS Setting SW2/4 SW2/5 SW2/6 208h Off On On 218h On Off On 258h Off Off On 268h On On Off 2A8h Off On Off 2B8h On Off Off 2E8h Off Off Off Disabled On On On FLOPPY DRIVE CONFIGURATION Setting SW1/7 SW1/8 1 drive attached On On 2 drives attached Off On 3 drives attached On Off 4 drives attached Off Off MONITOR TYPE SELECTION Setting SW1/5 SW1/6 Monochrome Off Off CGA, 40 x 25 Off On CGA, 80 x 25 On Off EGA or no monitor On On